hadoop-hdfs-dev mailing list archives

We will be holding a meeting for HDFS HA developers this coming Tuesday 13th at 2pm.
The agenda is to go over the next steps for Namenode HA development.
Location: Hortonworks Inc, 455 W Maude Avenue, Suite 200, Sunnyvale CA 94085
Date: Tuesday March 13th
Time: 2-4pm.
We will have room for approx 15 folks - please send me (sanjay@hortonworks.com) an email
if you are interested in attending so that I can reserve a spot and confirm. Minutes will
be posted on HDFS-1623.
sanjay
On Feb 21, 2012, at 9:16 PM, sanjay Radia wrote:
> Hello,
> We would like organize a meeting to discuss the 2nd phase of HDFS HA development.
>
> Right now the HA branch supports HOT-Failover, except that it is manual failover. We
are now moving into a phase to implement automatic failover.
> Please see HDFS-1623 for more details.
>
> Significant enhancements were completed to make HOT Failover work:
> - Configuration changes for HA
> - Notion of active and standby states were added to the Namenode
> - Client-side redirection
> - Standby processing editlogs form Active
> - Dual block reports to Active and Standby.
>
> Engineers at both Cloudera and Hortonworks have tested manual failover.
> Please see HDFS-1623 for more details.
>
> We would like to host a developers meeting on the week of March 5th (tentative) to plan
the next phase of development.
> Details of venue/conference bridge information to follow.
>
> Tentative Agenda:
> - Next development steps in automatic failover
> - Other enhancements for HA
>
>
> Sanjay